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Zircons in the granitic rocks of southeastern South Australia

Created 16/10/2025

Updated 16/10/2025

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A morphological study of zircons from the granitic rocks of southeastern South Australia has been made using reduced major axes, length/breadth ratios, colour, zoning and other features. In general, zircons in the biotite adamellites (Encounter Bay and Kingston areas) are more elongate, less euhedral and freer of inclusions and zoning than those occurring in the other granitic rocks of the region. Results suggest that the biotite adamellites are genetically related (they share the same zircon characteristics) and that they are unrelated to the more widespread eastern zone of hornblende-biotite granite, quartz porphyry and hornblende and biotite microgranite. The rocks in the eastern zone share very similar zircons and appear to be related.

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Field Value
Title Zircons in the granitic rocks of southeastern South Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/926996a7-1028-4423-ba20-f56eaa0a5947
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        138.0,
        -38.5
      ],
      [
        142.0,
        -38.5
      ],
      [
        142.0,
        -35.0
      ],
      [
        138.0,
        -35.0
      ],
      [
        138.0,
        -38.5
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Zircons in the granitic rocks of southeastern South Australia". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/zircons-in-the-granitic-rocks-of-southeastern-south-australia